TY - JOUR
T1 - Magnetic properties of R2Fe3O7 (R=Yb and Lu)
AU - Yoshii, K.
AU - Ikeda, N.
AU - Fukuyama, R.
AU - Nagata, T.
AU - Kambe, T.
AU - Yoneda, Y.
AU - Fukuda, T.
AU - Mori, S.
N1 - Funding Information:
This work was partially supported by a Grant-in-Aid for Scientific Research (B) from the Ministry of Education, Culture, Sports, Science, and Technology.
PY - 2013
Y1 - 2013
N2 - We have investigated the magnetic properties of R2Fe 3O7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe2O4. Magnetization measurements show ferrimagnetic ordering at the Néel temperature (T N) of ∼270 K, which is slightly higher than that of RFe 2O4 (TN∼230-250 K). Observation of spin glass and exchange bias shows a coexistence of ferromagnetic and antiferromagnetic interactions, similarly to RFe2O4. This situation gives rise to a complex magnetic change and a broad peak of magnetic entropy change. Some characteristics, such as refrigeration temperatures higher than in RFe2O4, seem to offer a possibility of this system to applications.
AB - We have investigated the magnetic properties of R2Fe 3O7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe2O4. Magnetization measurements show ferrimagnetic ordering at the Néel temperature (T N) of ∼270 K, which is slightly higher than that of RFe 2O4 (TN∼230-250 K). Observation of spin glass and exchange bias shows a coexistence of ferromagnetic and antiferromagnetic interactions, similarly to RFe2O4. This situation gives rise to a complex magnetic change and a broad peak of magnetic entropy change. Some characteristics, such as refrigeration temperatures higher than in RFe2O4, seem to offer a possibility of this system to applications.
KW - A. Iron oxides
KW - A. Spin glass
KW - D. Magnetic-phase transition
KW - D. Magnetocaloric effect
UR - https://www.scopus.com/pages/publications/84884805851
UR - https://www.scopus.com/pages/publications/84884805851#tab=citedBy
U2 - 10.1016/j.ssc.2013.08.030
DO - 10.1016/j.ssc.2013.08.030
M3 - Article
AN - SCOPUS:84884805851
SN - 0038-1098
VL - 173
SP - 34
EP - 37
JO - Solid State Communications
JF - Solid State Communications
ER -